In Yemen, a Saudi-led coalition has been fighting Iran-backed Houthi rebels since 2015, with U.S. support. Today, carnage from the conflict is worsening, and both the Houthis and the UN blame the coalition for dozens of civilian casualties. Nick Schifrin talks with Human Rights Watch's Kristine Beckerle, one of the lead authors of a new report that criticizes the coalition's conduct as "unlawful." Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: / newshour Instagram: / newshour Snapchat: @pbsnews Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe